Flue Installation (R98LSi, R98LSi-ASME)
Air Intake Assembly | 1 |
The air intake system consists of a field supplied 4 inch diameter stainless steel, Schedule 40 PVC, ABS or CPVC pipe. A maximum 6 feet of
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The air intake has a zero clearance to combustibles.
Air Intake Connection | 3 | 4 | |
1. | Drill 2 small holes at the end of the air intake | ||
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2. | Slide the pipe over the air intake terminal. |
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3. | Using a level, ensure the pipe is straight up and |
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| down. |
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4. | With self tapping screws, attach the pipe to the air |
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| intake terminal. |
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5. | Apply a bead of silicone around the pipe and air |
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| intake terminal, ensuring an air tight connection. |
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Exhaust Pipe Assembly
Refer to the manufacturer’s installation instructions for the specific exhaust vent system.
Venting Clearances to Combustibles
| Enclosed | Unenclosed | |
Vent Size |
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Horizontal & | Horizontal & | ||
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4" (102 mm) | 4" (102 mm) | 1" (26 mm) | |
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Horizontal Terminations
The air intake must be located in relation to the exhaust as shown below. The air intake must angle 1/4 inch per foot to the termination to prevent entry of rain.
6” |
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Vent |
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8” |
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Optional |
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Intake | EXHAUST |
Intake | COMBUSTION AIR / |
INTAKE | |
| SLOPE INTAKE AND EXHAUST |
The vent termination and air | TOWARD OUTSIDE TERMINATION |
MINIMUM 1/4" PER FOOT | |
intake must be in the same |
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pressure zone and face the |
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same direction. |
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32 | VB Series Indoor LS Manual |
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